Heating-stove



(No Mode-1.)

W. L. SWAN.

I HEATING STOVE. No. 362,045. Patented Apr. 26, 1887.

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UNITED STATES PATENT OFFICE.

WILLIAM L. SWAN, OF LANSING, MICHIGAN.

HEATING-STOVE.

SPECIFICATION forming part of Letters Patent No. 362,045, dated April 26, 1887,

Application filed May 2, 1884. Renewed May 6, 1886. Serial No. 2011405.

To all whom, it may concern.-

Be it known that I, XVILLIAM L. SWAN, of Lansing, in the county of Ingham and State of Michigan, have invented new and useful Improvements in Heating-Stoves; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to certain new and useful improvements in the construction and operation of heating-stoves, by means of which, with a minimum amount of fuel, I am enabled to obtain a maximum of heat, while at the same 15 time I am at all times, when the stove is in operation, discharging into the apartment warm currents of air fresh from outside the house; and the invention consists in the peculiar construction of the parts, their various 2o combinations, and operation, as more fully hereinafter described.

Figure 1 is a vertical central section showing the relative positions of the air-tubes and the manner of supplying them with air and at 2 5 the same time supplying the necessary air for the draft. Fig. 2 is a horizontal section on the .line as as of Fig. 1. Fig. 3 is a similar section taken on the line g y of Fig. 1. U

In the accompanying drawings, which form a part of this specification, A represents the shell of the stove, preferably made of sheetiron and slightly oval in form, although a rectangular form may be employed, if preferred. b is the bottom of the combustion-chamber and stove proper, and this is mounted upon a hollow base, which forms an air-chamber, O, which communicates with the air duct D, which passes through the wall E of the building, and through this air-duct fresh air is de- 0 livered to the pipes F, to be heated in its passage through said pipes. By means of this air-duct I also supply the necessary air to sustain combustion in the stove, as the only inlet to the stove for this purpose is through the 5 bottom I) of the stove, affording communication between the air-chamber below and the combustion-chamber above said bottom, as is shown at a and as is indicated by the arrow at that point. The pipes F pass through the bottom I) at or near the center of said bottom, and thence curve outwardly, as shown in Fig. 1, toward the side walls of the stove, and thence (No model.)

project upward in a vertical line, or nearly so, nearly to the top of the stove, where they curve toward the opposite side, as shown, and pass directly through the top G of the stove. Of

these pipes there are two or more, according to the required size of the stove, and in each series-that is, on each side-they inclose the combustion-chamber H and form a rest upon which the fuel is placed. This combustionchamber is provided with an end door, I, (shown in dotted lines,) and a draft-opening, J, provided with a damper, j, limited in its movement by the stop j, leads from the airchambcr tosaid combustionchamber, for the purpose of supplying oxygen to support combustion. These pipes, crossing each other, as shown and described, above the fire-bed and in the upper part of the combustion-chamber, conduct the air lh rough the hottest part thereof and discharge it highly heated through proper openings, 11', in the top, immediately below a deflect-or, K, cast or otherwise formed at this point on the top N, which serves to protect and shield the open ends of the pipes F, projecting through perforations n in the top N, and at the same time deflect the heated air outward and downward, whereby the heat is more evenly distributed. The stove-body may be provided with a removable cover and ornamental cap L, if desired. There is no pipecollar or exit for smoke and other products of combustion, except by means of a sheet-flue, M, formed within the body and just in front of the rear wall. This flue extends nearly to the top of the body, and opens into the combustion-chamber and extends down ,through the bottom, where it connects with a smokepipe, which leads, through or adjacent to the cold-air box, to a flue, N, in the wall E. This pipe is lettered P. At a suitable distance above the top of the stove an opening, Q, is made in the flue, which may be hidden by a picture, if desired, and in theflue, at the bottom of this opening, there is fixed a grate, B. When the fire is lighted in the stove, it becomes necessary to have a draft to force combustion. This is obtained by opening the pars sage into the chimney-flue and igniting upon the grate therein some highly inflammable matter, by means of which a draft is instantly created.

While I have stated that the pipe I? may run adjacent to the flue D, I prefer the construction shown, as the heat of the waste products of combustion is, in a measure, utilized to heat the air before it reaches the pipes F and before it passes to the combustion-chamber.

I do not desire to limit myself to the exact construction above described, wherein I have given what I esteem to be the best arrangement of parts for a wood-burning stove. I intend to apply the same device to coal-burning stoves, in which case a slight change would be required to adapt the stove to the successfulburning of coal as fuel. Such change would merely be a mechanical one, and come clearly within the scope of my invention.

Iam aware that itis notnew to provide stoves with hot-air pipes forming an arch over the combustion-chamber, and do not claim such, broadly, for in such stoves the upper ends are attached to or pass through the side of the shell, and as such shells are commonly made of sheet metal and soon wear out, considerable trouble and expense are incurred in replacing them, whereas by my construction, having the pipes pass through perforations in the cover or top of the stove, the shell may be easily replaced and at asmallexpense.

I am also aware that it is not new to provide stoves with a hot-air flue extending on one side of and running beneath and overthe top of the fire-chamber, the lower portion of said flue being provided with an opening leading into the combustion chamber, and make no claim thereto.

What I claim as my invention is 1. In a stove, aseries of air-pipes extending through the top and bottom thereof, and bent to form an arch over the combustion-chamber and a support for the fuel, as and for the purposes set forth.

2. In a stove, pipes, as F, extending through the combustion-chamber and communicating with the surrounding air both above and beneath said chamber, in combination with a cover, as N, perforated to receive and hold in place the upper ends of the pipes F, and a de flector, as K, attached to said cover and extending over the discharge ends of said pipes, as and for the purposes specified.

3. The combination of a stove-body, acombustion-chamber, a hollow base forming an air-chamber opening into the combustionchamber, and a pipe extending through the wall of the building and supplying such chamber with fresh air, and aseries of hot-air pipes leading from said air-chamber and passing through the bottom of the combustion-chamber and leading into the surrounding air, as

and for the purpose specified.

4. In a stove, asheet-fluein the body thereof communicating with a pipe leadingthrough or adjacent to the cold-air box into the flue, in combination with a grate in said chimneyflue and an opening leading thereto, substantially as and for the purposes set forth.

5. In a stove, a conduit leading from outside the building thereto, for supplying air to promote combustion, in combination with a second conduit passing through the former and arranged to carry off the waste products of combustion, which in their passage partially heat the incoming air, substantially as described.

WILLIAM L. SWAN.

Vitnesses:

H. S. SPRAGUE, E. ScULLY. 

